Generally speaking, ______ according to the directions, the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |
People go to clean graves and light incense their ancestors.
| A．in debt | B．in their turn | C．in memory of | D．in time |
—Mom, I did not pass the exam.
—What a pity! Youit.
| A．can pass | B．should have passed | C．must pass | D．must have passed |
This is the only article _____ was written by him.
| A．who | B．whom | C．which | D．that |
Let’s go to cinema, and that’ll take your off the problem for while.
| A．the; the | B．the; a | C．a; the | D．a; a |
—May I have a look at those books？
—______.
| A．Not at all | B．Never mind |
| C．Make yourself at home. | D．You’re welcome |